it is not what I am saying at all. if the belt is going at a constant speed, the only resistance applied to the plane is the drag caused by the wheels.. which is not enough to prevent the plane from taking off. however, if the belt is accelerating it will produce greater resistance on the wheels. if the acceleration matches that of the wheels, it will be enough friction to keep the plane stationary.
If the belt is moving at a constant speed and that speed is enough to cause enough drag on the wheels to balance the max thrust of the aircraft then the plane will not move.
We don’t need to concern ourselves with acceleration to demonstrate this.
Regards,
Patrick